3 (also spline curve) Mathematics A continuous curve constructed so as to pass through a given set of points and have a certain number of continuous derivatives. Example sentences. 1  The data was therefore fit nonparametrically to a smooth curve using the Dierckx algorithm for cubic spline curve fitting.
Definition of Unearned Revenue in Accounting. Unearned revenue is the same thing as deferred revenue. In accounting, unearned revenue is a liability. It is a liability because even though a company has received payment from the customer, the money is potentially refundable and thus not yet recognized as revenue.
Advance payments or unearned revenue, recorded on the recipient's balance sheet as a liability, until the services have been rendered or products have been delivered. Deferred revenue is a liability because it refers to revenue that has not yet been earned, but represents products or services that are owed to the customer. Advance payments or unearned revenue, recorded on the recipient's balance sheet as a liability, until the services have been rendered or products have been delivered.